Air conditioner



FIG. 1 is a front view of the air conditioner according to the new design;

FIG. 2 is a back view of the air conditioner;

FIG. 3 is a top view of the air conditioner;

FIG. 4 is a bottom view of the air conditioner;

FIG. 5 is a left side view of the air conditioner;

FIG. 6 is a right side view of the air conditioner;

FIG. 7 is a front perspective view of the air conditioner; and,

FIG. 8 is a back perspective view of the air conditioner.

The broken lines in the Figures show portions of the air conditioner that form no part of the claimed design. 

CLAIM The ornamental design for a air conditioner, as shown and described. 